Can I prepare the mixture the night before?

You can grate and squeeze the squash up to 24 hours ahead, then refrigerate it in a covered container. Whisk the eggs and fold everything together just before baking because an overnight mixed batter draws water from the vegetables and can make the muffins dense.

Why did my egg muffins turn watery?

The squash probably held too much moisture or the spinach went into the bowl wet. Salt the squash for 10 minutes and squeeze it for 45 to 60 seconds, then pat the chopped spinach dry. Bake until the center cups reach 160°F.

Can I make these dairy-free?

Use 1/2 cup unsweetened oat milk and 1 cup dairy-free cheddar-style shreds. Bake at 375°F and begin checking at 20 minutes because some plant-based shreds slow surface browning. Expect a softer center overall and less toasted cheese aroma.

How do I double the recipe?

Mix two separate batches so the vegetables stay evenly suspended, then fill two 12-cup tins. Bake both at 375°F and swap rack positions at minute 12. The total time may increase by 3 to 5 minutes, so verify 160°F in both tins.

Can I freeze Patty Pan Squash Egg Muffins?

Yes. Freeze the cooled muffins in a single layer for 1 hour, then wrap each one and store them for up to 2 months. Reheat from frozen at 325°F for 18 to 20 minutes so the center warms without making the edges rubbery.

What should I serve with these egg muffins?

Serve two or three muffins per person with fresh fruit and roasted breakfast potatoes. For brunch, keep them warm in a 200°F oven for up to 30 minutes. Add hot sauce only at the table so the bronzed tops don't turn soggy.

Patty Pan Squash Egg Muffins

Name: Patty Pan Squash Egg Muffins
Prep time: 15 min
Cook time: 30 min
Total time: 45 min
Cuisine: American
Ingredients: 3 medium yellow patty pan squash; 3/4 teaspoon kosher salt; 8 large egg; 1/2 cup whole milk; 1 cup sharp cheddar; 1/2 cup red bell pepper; 1 cup baby spinach; 3 medium scallion; 1/2 teaspoon garlic powder; 1/4 teaspoon ground black pepper; 2 teaspoons extra-virgin olive oil spray

Description

These Patty Pan Squash Egg Muffins are an easy and healthy answer for quick breakfasts, simple brunch ideas and the best meal prep mornings. Tender squash keeps every bite soft while sharp cheddar creates crisp golden edges and a warm savory smell. What makes this version different is the trick of salting and squeezing the squash before mixing, so the centers set instead of turning watery. Bake a batch for brunch, a holiday breakfast, a potluck or a busy weeknight dinner.

Ingredients

Scale

3 medium yellow patty pan squash
3/4 teaspoon kosher salt
8 large egg
1/2 cup whole milk
1 cup sharp cheddar
1/2 cup red bell pepper
1 cup baby spinach
3 medium scallion
1/2 teaspoon garlic powder
1/4 teaspoon ground black pepper
2 teaspoons extra-virgin olive oil spray

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Instructions

Set the oven to 375°F, then grate 3 medium yellow patty pan squash into fine shreds. Toss them with 1/2 teaspoon kosher salt and rest for exactly 10 minutes at about 70°F. Gather the shreds in a clean towel and twist firmly over the sink for 45 to 60 seconds. Keep squeezing until no steady stream remains. The squash should shrink to about 1 1/2 packed cups and feel damp but not dripping. You’ll smell a fresh grassy scent and see only a few droplets when you press a handful. Stop before the shreds turn dry and matted. Skip the squeeze and trapped water makes the muffins rubbery. Removing moisture protects the egg structure during baking.
Add 8 large eggs and 1/2 cup whole milk to the drained squash at about 65°F. Whisk in short circles for 45 seconds, then scrape the bowl once. Fold in 1 cup shredded sharp cheddar, 1/2 cup diced red bell pepper, 1 cup chopped baby spinach and two sliced scallions. Add 1/4 teaspoon kosher salt, garlic powder and black pepper, then fold eight times. The mixture should look thick and glossy with vegetables suspended from top to bottom. You’ll see small cheddar strands and bright red pieces rather than a smooth yellow liquid. Don’t beat past 90 seconds or the eggs trap excess foam and rise unevenly. Fold just until distributed because gentle mixing keeps the finished centers tender.
Coat a standard dark metal 12-cup muffin tin with 2 teaspoons extra-virgin olive oil spray while the oven holds at 375°F. Stir the batter twice from the bottom, then divide it among all 12 cups within 4 minutes. Fill each cup three-quarters full and place larger vegetable pieces unevenly across the tops. Each cup should hold the same depth, but the red pepper and spinach won’t look perfectly centered. Tap the filled tin once and watch small air bubbles rise. Overfill above three-quarters and the domes spill onto the rim. Even portions set together because equal depth controls heat transfer in every cup.
Bake the filled tin at 375°F for 18 to 22 minutes. Rotate it 180 degrees at minute 12 and leave the oven closed afterward. Check the center muffins first with an instant-read thermometer. Pull the tin when they reach 160°F and the tops spring back after a light press. (I tried 400°F first, the tops browned before the centers set.) The muffins should rise into uneven golden domes with bronze edges and small melted cheddar pockets. You’ll smell toasted cheese and hear a faint sizzle around the outer cups. Go past 165°F and the egg proteins tighten into a dry sponge. Baking at 375°F sets the centers before the edges overcook.
Rest the muffins in the tin for 5 minutes until their centers cool to about 140°F. Run a thin knife around each edge with one smooth circle, then lift them without twisting. Place one muffin on a small white plate and split it once through the center. Scatter the reserved sliced scallion over the warm surface. The cut face should show moist yellow curds with pale squash shreds, red pepper cubes and dark green spinach. A few crumbs may fall and the top should stay softly domed. Pull them sooner and the sides tear. Wait longer than 10 minutes and condensation softens the edges. A brief rest lets steam settle while the egg structure firms.

Notes

Pro Tips:

Choose yellow patty pan squash about 3 inches wide because smaller squash have thinner skins and fewer firm seeds.
Measure the squeezed squash at about 1 1/2 packed cups because extra volume can keep the center muffins below 160°F.
Keep red bell pepper cubes near 1/4 inch so they soften within 22 minutes and don’t sink heavily.
Use a dark metal muffin tin at 375°F because glass cups hold heat longer and can toughen the egg edges.
Rotate the tin once at minute 12, but don’t open the oven again before minute 18 or the domes may fall.
Cool the batch for exactly 5 minutes before loosening because hot edges tear and 10-minute rests create condensation.
Finish with one sliced scallion and serve while the muffins are near 140°F for the best tender texture.

Storage: Cool the muffins completely for 30 minutes, then refrigerate them in a shallow airtight container for up to 4 days. Place a paper towel under and over the muffins to catch condensation. Freeze them individually for 1 hour, then wrap each one and transfer to a freezer bag for up to 2 months. Label the bag with the date so older muffins get used first. Reheat refrigerated muffins at 325°F for 8 to 10 minutes or microwave one at 70% power for 45 to 60 seconds. From frozen, unwrap and bake at 325°F for 18 to 20 minutes. Add 1 teaspoon shredded sharp cheddar during the final 3 minutes if the surface seems dry. Discard muffins with a sour odor, slimy edges or gray-green spotting.

Prep Time: 15 minutes
Cook Time: 30 minutes
Category: Breakfast
Cuisine: American

Nutrition

Serving Size: 1 serving (of 4)
Calories: 375
Sugar: 7g
Sodium: 1026mg
Fat: 35g
Carbohydrates: 15g
Fiber: 4g
Cholesterol: 439mg